Grinder.



M. W. NEUENS.

GRINDER.

APPLICATION FILED FEB. 13| 1915.

Patented Nov. 30, 1915.

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,/f/y//Af I M. W. NEUENS.

GRINDER.

APPLICATION FILED' FEB. I3, 1915.

Ll, Patented N0v.30,1915.

2 SHEETS-SHEET 2.

f M//f/y//w UNT' *TED sTATEs PATENT orrrcn.

MICHAEL W. NEENS, PORT WASHINGTON, WISCONSIN, ASSIGNOR TO-.WESTERN IMPLEMENT coMrANY, or PORT WASHINGTON, wisconsin.

GRINDEII..

To all whom/t may concern.'

Be it known that I, MICHAEL W. 1nUENs,

a citizen of the United States, and residentof Port Washington, in the county of Ozaukee and State of Wisconsin, have invented certain new and useful Improvements in Grinders; and I do hereby declare that the following is a full, clear, and exact descrip` pulverizer-disk clamping means and a' tool rest or support, whereby sickles, tools of various types and pulverizer disks may be sharpened without the assistance of a skilledy grinder.

With the above objects in view the invention consists in certain details of construction and combination of mechanical elements as hereinafter set forth with reference to the accompanying illustrations and subsequently claimed.

In the drawings Figure 1 represents an elevation of a power grinder embodying the features of my invention equipped w1th an attachment for supporting and grinding the blades of a sickle-bar, parts being broken away and in section to show certain novel features in detail; Fig. 2, a detailed crosssection through the sickle-bar supporting mechanism, the section being indicatedby line 2-2 of Fig. 1; Fig. 3, a-detailed sectional view through one end of the arbor showing the means for attaching the sickle bar grinder wheel, the section being indicated by line 3-3 of Fig. l; Fig. 4, a detailed sectional view through the sickle-bar attaching mechanlsm, the section being indicated by line 4-11 of Fig. 2; Fig. 5, a fragmentary sectional elevation of one end of the grinder unit having attached thereto a pulverizer disk-supporting means, which means is interchangeably fitted to the grinder unit with relation to the sickle-bar supporting means; Fig. 6, a detailed elevation of the head end of the disk-supporting means with parts broken away and in section, and Fig. 7, a sectional elevation through the grinder unit, the section being indicated by line 7-7 of Fig. l, showing an adjustable toolsliecmcation of Letters Patent., Patented Nov, 30, 1915,

. j j y Application filed February 13, 1915. Serial No. 7,992. y 1

rest, which rest is associated `with a universal grinder-wheel that is adapted to be tted to the juxtaposed arbor end.' f

v Referring by characters to the drawings,

l 1 represents a base block, to which is bolted the base stretch 2 of a channel iron bowed strut having upwardly extending arms 2', the said channel-iron being U-shaped in cross-section. The upper open ends of the strut arms receive depending ears 8 of a pair of alined journal boxes 4, the said box ears being secured to the arms by bolts 3. Mounted in the journal-boxes is an arbor 5 provided with thrust-resisting,collars 5l which .abut the inner faces ofthe companion journal-boxes, the said arbor being also pro- -vided with a drive pulley 5 that is designed to be placed in belt connection with a source of power, especially of the small gas engine type, such as used about farms for various purposes.

The base-block, which carries the arbor-supporting strut, is ari tion of clamping collars 6, 6, between which.` fittings various grinder-wheels are clamped by nuts 7 that are in threaded union with the ends of said arbor. As shown in Fig. 1, the arbor is tted with only one grinderwheel A, the face of which grinder-wheel is beveled in opposite directions from the central point for the especial purpose of sharpening sickle-bar blades.

The arms 2 of the arbor-supporting strut are also provided with alined apertures 8 'through which, as shown in Fig. 1, there is fitted a guide-rod 9, the rear end of which guide-rod is provided with a head 8, whereby end thrust with relation to the arm socket is resisted in one direction. End thrust of the guide-rod 9 in the opposite direction is opposed by a split key 8, which is fitted through an aperture that is formed in the rod. The outer end 9 of the rod extends beyond the arm struts, as shown. Oscillatorily mounted upon the guide-rod 9 are the legs 10 of a yoke member, the basebar 10 of which has secured thereto a man ipu1ating handle 10". f Both -of the yokefarms 'are adapted vto have sliding play .uponthe guide-rod 9-'and one of said arms 1s positioned tomove back and forth be .tween 'the s'trut arms 2', Awhile the' opposite arm is adapted to have similar movement about the projecting -end 9" ofthe guidea pintlefrod 11, .which `pintle-rod rhas hingedly mountedthereon legportions 12 .of aV sickle-'bar gripping bracket, .the said i legs being cross-connected by a reach-strap 12', as best shown in Fig. 1. Each 'grippng\ ybracket leg 12 is'formed with` a cutter-bar l a rest-lug 13', whereby the sickle mechanism socket 13,-into whichis. registered the ncutter-bar 'alcarrying sicklefknives4 B and one of said bracket legs has extending therefrom knives B.. These grippmg lingers are provided with jawed ends 14', which are seated V overthe ends of the bracket-legs and said fingers are firmly confined by clamping bolts 4 15, which pass through the same and suit able apertures formed in the ends of the legs, the said bolts'being secured by thumbnuts 15', as best shown in Figs. 1 and 2.A

The sickle-bar and knives, when thus clamped, are laterally adjusted upon the guide-rod 9, whereby their opposite. cutting faces are centered upon the beveled faces ofthe grinding wheel A, as shown in Fig. 1.'

A grinding ressure between the wheel and blades is e ected by a tension spring 16, which tension spring connects `one of the arms 13 ofthe bracket and a lug 17' of a toe bracket 17, the latter being secured to the juxtaposed yoke-arm 10 by a bolt 17' Oscillatory movement ofthe toe bracket is opposed bya lip 17"', which lip overlaps the upper edge of the yoke arm'. The toe v bracket 17 is also-provided with a projecting stop-lug 18, which lug is adapted to receive an adjustable stop-bolt 18", the same being `in threaded union with a web that connectsthe bracket leg and strap portion 12 thereof. l

From', the foregoing description it is `manifest that, when the sickle-bar supporting mechanism is put -into operation, the' proper .bevelfor sharpening. the converging cuttingedges of the blades is automatically insured, due to the taper upon the abrading Wheeland'the blades are thus eiiectually sharpened by `impartin an oscillatorymovement to the yoke. fter the opposite pair of cutting edges of one set of blades have been properly ground, the sickle-bar gripping bracket 1s shifted longitudinally .so as to aline the center ofthe abrading wheel A with the interstice between the succeeding pair of blades, wherebyy they will be being lter-pin 8'. Thereafter the gulde-rod -is 'properly' ground and so on throughout `the tioned. l

. If it is desired to grind the cutting edges of a serles of pulverizer disks, the sickle-bar equipment or mechanism is removed from`` the grmder unit, the dismantling operation effected by slmply removing the cotwithdrawn from its position of rest within the strut aperture and, coincident to this movement, the cutter-bar supporting mechvanism is freed, .whereby it can be removed. A disk supporting mechanism is then attached to one ofthe strut arms.d supporting mechanism comprises a slotted base leg 19 having a foot 19', which foot is alined with the strut arm aperture 8. A

- clamping bolt 20 is then fitted through the foot and arm aperture and is confined by a clamping nut 201'. Thus the slotted baseleg is firmly secured to the strut and projecting beyond' one end of .the arbor.

Adjustably-secured. to the slotted base-leg This disk 19isa slotted leg section 21, the said leg members being clamped together by a suitable bolt 22 and winged clamping nut 22',

vthe bolt being passed through the slots of'.

both leg sections. The upper end of the` leg section 21A terminates with a boX'23, intoy which is oscillatorily fitted the shank 24 of a head 24:', the said shank being confined by a split key 25. The head is bored at a 'right angle to itsshank-portion 24 for the reception of a stud 26, the outer end of the same i being formed with a collar 26' anda projecting threaded lpin 27. The stud is arranged to revolve within the head and is held against end play by a split-pin 26", as shown. This stud is adapted to receive any type of diskC such as are usually employed in connection with farm implements. These disks are centrally apertured and the aperture is fitted over the stud-pin 27, whereby the disk -is seated upon the collar 26. Thereafter the disk is confined by a collar 29 which isdropped over the pin 27 and said collar is drawn tightly against the inner face of the disk by a clamping nut 29', which nut is in threaded union with the pin 27.

In order to provide the proper bevel for sharpening the disk C, the` juxtaposed end of the arbor 5 is fitted with a grinding wheel A', which grinding-wheel is'substituted.. for the grinding-wheel shown in Fig. 1. This disk grinding-wheel 'A' is formed with a tion or disk tightened, whereby the disk isl firmly sup.

ported in its selected position with relation to the grinder. Thereafter motion being imparted to the `spindle,lit is obvious that the proper bevel will be presented for grinding the renewed cutting edge, the' oscillatory head permitting the disk to compensate coincident to a regrinding operation.

Referring to Fig. 7 rearl end of the arbor is shown in said figure equipped with a universal grinder wheel D, which wheel is adapted to grind tools or implements of various kinds. It is desirable in ordinary grinding of this character to provide means for supporting the tools being ground and, with this in view I provide an L-shaped supporting bar 20, the base sec- `tion 30 of which is slotted and adapted to `receive an anchor-bolt 31, which anchor-bolt, .h

as shown in Figs. 1 and 7, is extended up through the 'base-block 1. The vertical reach of the tool-supporting bar 30 `has riveted theretoan angle-iron cross-strut 32 upon which strut the tool to be. ground is `adapted to rest, whereby the proper angle withy relation to the stone or grinding wheel can be maintained. It is also" obvious that, owing to the means of connecting thissupporting bar with the base, the said supporting bar can be adjusted laterally, whereb the cross-strut is adjusted back andfo'rth with relation to the periphery of the wheelD. I claim: 1. A power grinder comprising a substantially upright U-shaped strut, arbor 'ournals detachably seated in the ends ofy t e' arms" of the strut, an arbor ,mounted in the jour-- nals, a holder support detachabl connected to and extendingltransversel ougli and projecting latera y beyondv t e-arms ofthe strut below the arbor, .and toolQhold'ers4 mounted on and adjustable longitudinally 0f the support,

2. Apower grinder a Ystrut'- of the drawings, the

formed of channel iron, the strut being bent to a substantially U-shape to provide an f elongated base and upstanding end arms,/

the struty being disposed so that at its base the side anges are pendent and at its arms, the flanges project outwardly, the ends of the arms form sockets that are open at their o.

free Vends and on their outer sides, means engaging the base of the strut to hold the pendent flanges thereof in engagement with a support, arbor journals having ears that enter the socket seats, anI arbor mounted in the journals, a tool-supporting holder having an Aadjustable engagement with the lower portion of the strut.

3. A tool grinder Acomprising ya strut formed ofchannel iron shaped to form an elongated base and disposed so that the pendent side anges thereof will engage a base support, the ends of the channel ironbeing bent upward to form arms that are open at their outer sides, .the free ends of.

the arms forming seats forjournals, and the lower portions of the arms being provided .with alined openings for the reception of tool holder supports.

4. A' tool grinder comprising a strut` formed of a-continuous stripv vof channel iron, shaped to provide a fiat elongated base aving upstandlng arms' at the ends thereof, the channel formation of the arms providing seatslfor the reception of journals, and the lower portio'nsof the arms being provided withl means lfor the vreception of tool holder supports. j

5g-A power grinder comprising a strut vcomposed. of ja channel-iron strip that is U-shaped in cross-section and bent upwardly at its ends to form arms, the ends of the arms formin seats that are closed on three sides, ourna -boxes having pendent portions exten ed k1ntc 'sa1d seats, means for fastenj ingsaid pendent'portions in said seats, a

grindercarrying arbor mounted .in the journal-boxes, and means for imparting power to said arbor.

.Inv testimonyV that-I claim the foregoing Iha'vejhereunto set my hand' at Port Wash# `in'gton `in the county of Ozaukee and State ofA-Wisconsin' in the presenceA of .two witnesses-1"' moriAEL w. NEUENs.

Witnesses...

, T. QA. BOERNER,

W. BoLE'Ns. j 

